Laboratory vibratory mill

Abstract

The invention illustrates and describes a laboratory vibratory mill with at least one milling beaker holder which is mounted so as to be capable of oscillating, for at least one milling beaker, and with a temperature control device for controlling the temperature of the milling beaker by feeding in and/or carrying away a liquid or gaseous temperature control medium via at least one temperature control line to the milling beaker holder. According to the invention there is provision that the milling beaker holder has at least one heat transfer element which is connected to the temperature control line, wherein the heat transfer element has at least one medium duct for feeding through the temperature control medium, and wherein the temperature control of a milling beaker which is secured to and/or in the milling beaker holder is carried out by transferring heat between the temperature control medium conducted in the medium duct and the milling beaker via a wall of the heat transfer element.

The invention claimed is: 
     
       1. A laboratory oscillation mill comprising:
 a swingingly mounted grinding bowl holder for a grinding bowl; and 
 a temperature control device for a temperature control of the grinding bowl by supplying and/or discharging a liquid or gaseous temperature control medium via a temperature control line to the grinding bowl holder; 
 wherein the grinding bowl holder has a heat transfer element connected to the temperature control line; 
 wherein the heat transfer element has a medium channel for passing through the temperature control medium; 
 wherein the temperature control of the grinding bowl held by the grinding bowl holder is effected by a heat transfer between the temperature control medium guided in the medium channel and the grinding bowl via a wall of the heat transfer element; 
 wherein the heat transfer element is designed as a flat temperature control plate, so that the grinding bowl can be placed with a bottom surface on the temperature control plate; and 
 wherein the grinding bowl holder is designed for the temperature control of the grinding bowl without contact with the temperature control medium. 
 
     
     
       2. The laboratory oscillation mill according to  claim 1 , wherein the temperature control is affected by the heat transfer between the temperature control medium and the grinding bowl via contact surfaces of the heat transfer element and the grinding bowl, which lie directly against one another. 
     
     
       3. The laboratory oscillation mill according to  claim 2 , wherein the heat transfer element and the grinding bowl bear against one another over substantially an entirety of the contact surfaces of the heat transfer element and the grinding bowl. 
     
     
       4. The laboratory oscillation mill according to  claim 2 , wherein the heat transfer between the heat transfer element and the grinding bowl takes place substantially exclusively by heat conduction via the contact surfaces of the heat transfer element and the grinding bowl. 
     
     
       5. The laboratory oscillation mill according to  claim 1 , wherein the grinding bowl holder is designed to brace the grinding bowl against the heat transfer element. 
     
     
       6. The laboratory oscillation mill according to  claim 1 , wherein a measuring, control and/or regulating device is provided for automatically controlling and/or regulating a temperature of the grinding bowl holder and/or a temperature of the grinding bowl and/or a temperature in a grinding chamber of the grinding bowl. 
     
     
       7. The laboratory oscillation mill according to  claim 1 , wherein the swingingly mounted grinding bowl holder is a first grinding bowl holder and the grinding bowl is a first grinding bowl;
 wherein a second swingingly mounted grinding bowl holder for a second grinding bowl is provided; and 
 wherein a measuring, control and/or regulating device is provided for controlling and/or regulating temperatures at the first and second grinding bowl holders and/or in the first and second grinding bowls independently of one another. 
 
     
     
       8. A method for the temperature control of the grinding bowl during a grinding process in the laboratory oscillation mill according to  claim 1 , wherein a temperature at the grinding bowl holder and/or a temperature in the grinding bowl and/or a temperature in the temperature control line for the temperature control medium for a temperature control of the grinding bowl holder and/or the temperature control of the grinding bowl is measured and controlled and/or regulated.